package com.sortlistview;

import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.myapplication.R;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;


public class MainActivity extends Activity {
	private ListView sortListView;
	private SideBar sideBar;
	private TextView dialog;
	private SortAdapter adapter;
	private ClearEditText mClearEditText;

	/**
	 * 汉字转换成拼音的类
	 */
	private List<SortModel> SourceDateList;

	/**
	 * 根据拼音来排列ListView里面的数据类
	 */
	private PinyinComparator pinyinComparator;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.sort_list);
		initViews();
	}

	private void initViews() {
		//实例化汉字转拼音类

		pinyinComparator = new PinyinComparator();

		sideBar = (SideBar) findViewById(R.id.sidrbar);
		dialog = (TextView) findViewById(R.id.dialog);
		sideBar.setTextView(dialog);

		//设置右侧触摸监听
		sideBar.setOnTouchingLetterChangedListener(new SideBar.OnTouchingLetterChangedListener() {

			@Override
			public void onTouchingLetterChanged(String s) {
				//该字母首次出现的位置
				int position = adapter.getPositionForSection(s.charAt(0));
				if(position != -1){
					sortListView.setSelection(position);
				}

			}
		});

		sortListView = (ListView) findViewById(R.id.lv_phone);
		sortListView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				//这里要利用adapter.getItem(position)来获取当前position所对应的对象
				Toast.makeText(getApplication(), ((SortModel)adapter.getItem(position)).getName(), Toast.LENGTH_SHORT).show();
			}
		});

		SourceDateList = filledData(new String[]{"申通","顺丰","圆通","天天","韵达","中通","安利","安能","安利","安利","安利","安利","安利","安利","安利","安利","安利","YHOO"});

		// 根据a-z进行排序源数据
		Collections.sort(SourceDateList, pinyinComparator);
		//adapter = new SortAdapter(list1, SourceDateList,this);
		sortListView.setAdapter(adapter);


		mClearEditText = (ClearEditText) findViewById(R.id.filter_edit);

		//根据输入框输入值的改变来过滤搜索
		mClearEditText.addTextChangedListener(new TextWatcher() {

			@Override
			public void onTextChanged(CharSequence s, int start, int before, int count) {
				//当输入框里面的值为空，更新为原来的列表，否则为过滤数据列表
				filterData(s.toString());
			}

			@Override
			public void beforeTextChanged(CharSequence s, int start, int count,
					int after) {

			}

			@Override
			public void afterTextChanged(Editable s) {
			}
		});
	}


	/**
	 * 为ListView填充数据
	 * @param date
	 * @return
	 */
	private List<SortModel> filledData(String [] date){
		List<SortModel> mSortList = new ArrayList<SortModel>();

		for(int i=0; i<date.length; i++){
			SortModel sortModel = new SortModel();
			sortModel.setName(date[i]);
			//汉字转换成拼音
			String pinyin = CharacterParser.converCnToPY(date[i]);
			String sortString = pinyin.substring(0, 1).toUpperCase();

			// 正则表达式，判断首字母是否是英文字母
			if(sortString.matches("[A-Z]")){
				sortModel.setSortLetters(sortString.toUpperCase());
			}else{
				sortModel.setSortLetters("#");
			}

			mSortList.add(sortModel);
		}
		return mSortList;

	}

	/**
	 * 根据输入框中的值来过滤数据并更新ListView
	 * @param filterStr
	 */
	private void filterData(String filterStr){
		List<SortModel> filterDateList = new ArrayList<SortModel>();
		
		if(TextUtils.isEmpty(filterStr)){
			filterDateList = SourceDateList;
		}else{
			filterDateList.clear();
			for(SortModel sortModel : SourceDateList){
				String name = sortModel.getName();
				name=name.toUpperCase();
				String pname=CharacterParser.converCnToPY(name).toUpperCase();
				if(name.indexOf(filterStr.toString().toUpperCase()) != -1 || pname.startsWith(filterStr.toString().toUpperCase())){
					filterDateList.add(sortModel);
				}
			}
		}
		
		// 根据a-z进行排序
		Collections.sort(filterDateList, pinyinComparator);
		adapter.updateListView(filterDateList);
	}
	
}
